.mce-panel, .mce-btn {
  background-color: #FFF!important;
}

.mce-btn:hover, .mce-btn:focus {
  background-color: #E6E6E6!important;
}

.mce-primary button, .mce-primary button i {
  background-color: #337ab7;
  border-color: #2e6da4;
}

.mce-primary button:hover, .mce-primary button:focus i {
  background-color: #286090;
  border-color: #122b40;
}
